Tool blade



FIG. 1 is a top perspective view of a tool blade showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a left side elevational view thereof.

The broken line showings of the handle are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a tool blade, as shown and described. 